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Regulus Provides Update on Exploration Activities and Community Initiatives

Exploration Programs

NEWS RELEASE

Regulus Provides Update on Exploration Activities and Community Initiatives

August 29, 2023 (Vancouver, BC) - Regulus Resources Inc. ("Regulus" or the "Company", TSX-V: REG,

OTCQX: RGLSF) is pleased to provide an update on its exploration activities and ongoing community initiatives

at the AntaKori copper-gold project in Cajamarca, Peru. With a substantial resource already defined, the Company

is reviewing various pathways to unlock value at the AntaKori deposit. Management currently believes the best

pathway forward is to integrate the AntaKori deposit with the neighbouring Tantahuatay Mine and sulphide

project. As the Company actively pursues these opportunities, work continues on several fronts to set the stage

for development of the project in the most efficient and profitable manner for the benefit of all stakeholders.

Exploration and Development Activities

The collaborative program with Nuton LLC, a Rio Tinto venture (“Nuton”), to evaluate primary copper sulphide

and sulfosalt leaching is progressing well. The NutonTM technologies have the potential to process arsenic-bearing

copper sulphides and sulfosalts with less impact on the environment and water resources than traditional

concentrator processing (see news release dated December 22, 2022). The Company, working in collaboration

with Nuton, has identified that the best pathway to provide near-term samples for Phase 2 column test work is to

utilize the existing core the Company has stored in its warehouse. This means the Company can deliver samples

to Nuton in the near-term instead of waiting for drilling to be completed. The Company plans to ship core samples

to Nuton in Q3-2023 with complete Phase 2 column test results expected in approximately one year. This will

result in significant cost savings for the Company as it means there is no requirement in the near-term to complete

new drill holes specifically for metallurgical testing.

The Company has been working with the nearby community of Tingo over recent months to gain social license

to begin exploration activities on the claims where Regulus can earn up to a 60% interest from Gold Fields Ltd.

(the “GF Claims”) (see news release dated February 16, 2021). As a result of dialogue with the community, the

Company has gained access to the GF Claims, certain 100% owned Regulus claims, and claims owned by the

Regulus/Buenaventura joint venture where Regulus has a 70% interest (see Figure 1) to complete geological

mapping, geochemical sampling, and a ground magnetics geophysical survey (See Figure 2). A total of 190 surface

geochemical samples have been collected and sent to the laboratory for full geochemical analysis. The ground

magnetics geophysical survey has been completed and negotiations are underway to extend the area of surface

access agreements to allow for the completion of an IP/Resistivity survey. This area is located immediately to the

east of the Tantahuatay Mine and has several historical, small-scale underground and open-pit operations that

mined high-grade copper-gold mineralization between the 1940s and 1970s. Limited exploration has been

completed in this region since that time due to restricted access. The Company views investment in this area as

strategic for several reasons: (1) it begins the investment requirements towards earning an interest in the GF

Claims, (2) it strengthens the Company’s relationship with the community of Tingo and (3) the area is prospective

from an exploration perspective, given the historical mining activity. The Company anticipates this first stage of

exploration activities in this area will define future drill targets, although more surface work may be required. The

permitting process has been initiated to allow for drilling as warranted by Q2-2024.

Additionally, the Company has been actively completing a geological mapping and surface geochemical sampling

program on its northern claims (see Figure 1), where 155 samples have been collected and sent to the laboratory

for full geochemical analysis. This program was initiated to better understand the potential to extend

mineralization to the north of the main AntaKori resource and the recently completed drilling. This program was

completed on the GF Claims, 100% owned Regulus claims and claims owned by the Regulus/Buenaventura joint

venture where Regulus has a 70% interest.

The Company is also evaluating opportunities to develop an exploration decline into the main AntaKori resource.

The purpose of this decline would be to assist with potential future bulk sampling for metallurgical test work, as

well as easier and more affordable access for future definition drilling of the existing AntaKori resource.

Community Initiatives

Regulus has accelerated its long-term involvement in the local community and environmental projects that benefit

all stakeholders in the areas surrounding the AntaKori project, as the Company continues to advance and de-risk

the project for future development. These programs, which will provide significant opportunities for the people

of Cajamarca, include:

• The installation and technical support of satellite internet antennas, which provide fast and reliable

internet access to children and teachers at various educational facilities in areas of Chugur and

Hualgayoc that previously lacked connectivity;

• Initiatives to stimulate agricultural production with landowners in the vicinity of the AntaKori project,

including livestock projects, guinea pig breeding, and the optimization of milk production, all with the

aim of generating sustainable economic opportunities for the local population. The improvement and

conservation of forage and vaccination campaigns in the dairy cattle-raising district of Chugur have been

particularly successful – a project that will benefit over 500 families from the 14 villages in the sphere

of influence of the AntaKori project, by increasing pasture production by more than 30%, which has

downstream benefits of improving the quantity and quality of dairy products made in the region, and

• The construction and inauguration of a town square in El Chencho, financed by Regulus in a joint

venture with the NGO Prodia.

John Black, Chief Executive Officer of Regulus, commented as follows: “One of the pillars of our strategy is

to ensure we maintain strong relations with local communities and maintain social license. We have been working

with local communities to develop sustainable economic opportunities, not only that provide benefits today, but

that can be maintained and potentially grow in the future. Our team has been very busy on the ground completing

several exploration programs to help better understand the regional potential outside of the existing AntaKori

resource. In particular, the work completed in the Tingo area is exciting because it could be a prospective area

that has not had exploration work completed on it in nearly 50 years due to restricted access. The fact that we

can work on this ground today is a testament to the work our social teams have been executing. As well, we’re

working with Nuton to collect and ship samples for the second phase of test work utilizing their sulphide leaching

technology. With the availability of existing core to produce materials, there isn’t a need to commence a drill

program right now. This provides us time to develop new regional targets from the ongoing exploration programs

and complete the evaluation of an exploration decline before we spend resources on additional drilling.”

Qualified Person

The scientific and technical data contained in this news release pertaining to the AntaKori project has been

reviewed and approved by Dr. Kevin B. Heather, Chief Geological Officer, FAusIMM, who serves as the qualified

person (QP) under the definition of National Instrument 43-101.

ON BEHALF OF THE REGULUS BOARD

(signed) "John Black"

John Black

CEO and Director

Tel: +1 (604) 685-6800

Email: [email protected]

For further information, please contact:

Regulus Resources Inc.

Ben Cherrington

Tel: +1 347 394 2728

Email: [email protected]

About Regulus Resources Inc. and the AntaKori Project

Regulus is an international mineral exploration company run by an experienced technical and management team.

The principal project held by Regulus is the AntaKori copper-gold-silver project in northern Peru. The AntaKori

project currently hosts a resource with indicated mineral resources of 250 million tonnes with a grade of 0.48 %

Cu, 0.29 g/t Au and 7.5 g/t Ag and inferred mineral resources of 267 million tonnes with a grade of 0.41 % Cu,

0.26 g/t Au, and 7.8 g/t Ag (independent technical report prepared by AMEC Foster Wheeler (Peru) S.A., a Wood

company, titled AntaKori Project, Cajamarca Province, Peru, NI 43-101 Technical Report, dated February 22,

2019 - see news release dated March 1, 2019). Mineralization remains open in most directions.

For further information on Regulus Resources Inc., please consult our website at www.regulusresources.com.

Forward Looking Information

Certain statements regarding Regulus, including management's assessment of future plans and operations, may constitute

forward-looking statements under applicable securities laws and necessarily involve known and unknown risks and

uncertainties, most of which are beyond Regulus' control. Often, but not always, forward-looking statements or information

can be identified by the use of words such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled",

"estimates", "forecasts", "intends", "anticipates" or "does not anticipate" or "believes" or variations of such words and phrases

or statements that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved.

Specifically, and without limitation, all statements included in this press release that address activities, events or developments

that Regulus expects or anticipates will or may occur in the future, including the expected use of proceeds of the Private

Placement, receipt of exchange approvals, the proposed exploration and development of the AntaKori project described

herein, and management's assessment of future plans and operations and statements with respect to the completion of the

anticipated exploration and development programs, may constitute forward-looking statements under applicable securities

laws and necessarily involve known and unknown risks and uncertainties, most of which are beyond Regulus' control. These

risks may cause actual financial and operating results, performance, levels of activity and achievements to differ materially

from those expressed in, or implied by, such forward-looking statements. Although Regulus believes that the expectations

represented in such forward-looking statements are reasonable, there can be no assurance that such expectations will prove

to be correct. The forward-looking statements contained in this press release are made as of the date hereof and Aldebaran

does not undertake any obligation to publicly update or revise any forward-looking statements or information, whether as a

result of new information, future events or otherwise, unless so required by applicable securities law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture

Exchange) accepts responsibility for the adequacy or accuracy of this release.

Figure 1 – Plan map showing surface samples, in relation to conceptual pit which constrained Regulus’ 2019 mineral resource

estimate

Figure 2 – Cross section showing location of magnetics survey